This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help.
Summary
DescriptionMosaik 8483.jpg
Pflastermosaik in Freiburg
Date
Source
Own work
Author
Andreas Schwarzkopf
Camera location
47° 59′ 47.16″ N, 7° 51′ 00.71″ E
View this and other nearby images on: OpenStreetMap
47.996433; 7.850197
Licensing
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.